How does Google calculate domain age?

URLs are important for search engines like Google. Do they care which endings your URLs use though? Do they look at the whois data or do they rely on the crawler?

So the first thing that you need to know is that whois data is not generally available, even if you were a registrar. And whois data can vary from country code TLD. It is when did Google first see a website or when did google first crawl it. So there are a lot of ways you can think about the age of a domain.

A good way to think about it is often the vast majority of the time, Google will have coverage for when it first crawled a domain or when Google first saw a link to a domain, and that’s going to be a lot more useful data than, perhaps whois data that you might not be able to get for every single domain. Also, the difference between a domain that’s six months old versus one year old is really not that big at all. The fact is it’s mostly the quality of your content and the sort of links that you get as a result of the quality of your content that determine how well you’re going to rank in the search engines.